Merge r1634425 from trunk:

When using EBCDIC encoding, HTTPS through ProxyPass and ProxyRemote doesn't
work correctly. PR 57092

Submitted By: Edward Lu 
Reviewed By: covener, jim, ylavic




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1636002 13f79535-47bb-0310-9956-ffa450edef68